Mac: Fix %cpu in task manager.
Mac: Fix %cpu in task manager.

I changed %cpu from int to double but left the +0.5 for rounding in. Duh.

BUG=32464
TEST=Task Manager %cpu should match Activity Monitor's %cpu. In particular, inactive processes should have 0.0% cpu instead of 0.5%.

Review URL: http://codereview.chromium.org/548135

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@37004 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser